How accurate is phone GPS for measuring land area?

Standard smartphone GPS chips typically achieve 3 to 5 meters accuracy under an open sky. For large agricultural fields and plots (above 0.5 acre), phone GPS provides very reliable estimates. For small urban plots where inches matter, physical tape measurements or DGPS survey is recommended.

Can I import these measurements into Google Earth?

Yes! Click the "Download KML" button to download a standard KML file that opens directly in Google Earth, GIS software, or AutoCAD.

How does the Spherical Geodetic calculation work?

Because Earth is spherical, flat Cartesian 2D math causes distortion over distance. This tool uses spherical excess trigonometry on the WGS84 ellipsoid model to calculate exact real-world surface area.

GPS Land Area & Coordinates Calculator (GPS से जमीन नापें)

Calculate land area and boundary perimeter from GPS coordinates, map points, or walking phone tracker.

100% free
Private in browser
No signup
No watermarks

Sample Presets:

Plot Boundary Polygon (4 Points)

Total Area (एकड़ / Acre)

2.4193

Acres

Square Feet (वर्ग फीट)

1,05,386.59

sq ft

Gaj / Sq Yard (वर्ग गज)

11,709.62

Gaj

Boundary Perimeter (घेरा)

395.82 m

1,298.63 Feet

Hectares

0.9791 ha

Pucca Bigha (UP/Bihar)

3.871 Bigha

Guntha (MH/GJ/KA)

96.77 Guntha

Cent / Dismil

241.93 Cent

Add GPS Coordinate Point

Latitude (अक्षांश)

Longitude (देशांतर)

Point Label

1Corner A (North-West)

28.613939, 77.209021

2Corner B (North-East)

28.613939, 77.210021

3Corner C (South-East)

28.613039, 77.210021

4Corner D (South-West)

28.613039, 77.209021

Rate this tool

Be the first to rate — helps others and improves this page.

About GPS Land Area & Coordinates Calculator (GPS से जमीन नापें)

Calculate precise agricultural field area and property boundaries using GPS coordinates (Latitude & Longitude). Enter boundary waypoints, click on the interactive parcel canvas, or walk along your land boundary with your mobile phone GPS to instantly measure area in Square Feet, Acres, Gaj, Hectares, Bigha, and Guntha with KML and GeoJSON export.

How to use GPS Land Area & Coordinates Calculator (GPS से जमीन नापें)

Enter GPS coordinates (Latitude, Longitude) for each boundary corner, or click "Start GPS Walk" on mobile.
The tool automatically connects the waypoints into a closed polygon.
View the total land area in Acres, Bigha, Square Feet, Gaj, and Hectares.
Export your boundary as a KML file or GeoJSON for Google Earth and GIS software.

Key features

High-accuracy Spherical Geodetic polygon area calculation
Live Mobile GPS Walk Tracker (capture points while walking land perimeter)
Interactive boundary polygon canvas with corner markers
Calculates total fencing perimeter in meters and feet
One-click GeoJSON and KML file download
100% in-browser, no API keys or login required

Frequently asked questions

How accurate is phone GPS for measuring land area?: Standard smartphone GPS chips typically achieve 3 to 5 meters accuracy under an open sky. For large agricultural fields and plots (above 0.5 acre), phone GPS provides very reliable estimates. For small urban plots where inches matter, physical tape measurements or DGPS survey is recommended.
Can I import these measurements into Google Earth?: Yes! Click the "Download KML" button to download a standard KML file that opens directly in Google Earth, GIS software, or AutoCAD.
How does the Spherical Geodetic calculation work?: Because Earth is spherical, flat Cartesian 2D math causes distortion over distance. This tool uses spherical excess trigonometry on the WGS84 ellipsoid model to calculate exact real-world surface area.